#include <stdio.h>

void sum_diff( float op1, float op2, float *psum, float *pdiff );

int main()
{
    float a, b, sum, diff;

    scanf("%f %f", &a, &b);
    sum_diff(a, b, &sum, &diff);
    printf("The sum is %.2f\nThe diff is %.2f\n", sum, diff);

    return 0; 
}
void sum_diff( float op1, float op2, float *psum, float *pdiff ){
    *psum=op1+op2;
    *pdiff=op1-op2;
    
}
